Fluid handling – Line condition change responsive valves – With separate connected fluid reactor surface
Patent
1971-12-06
1976-11-09
Weakley, Harold W.
Fluid handling
Line condition change responsive valves
With separate connected fluid reactor surface
1371165, 13750542, F16K 1702
Patent
active
039904709
ABSTRACT:
A means for controlling fluid flow including a housing having an input port adapted to be connected to a source of fluid under pressure and also havng an output port adapted to be connected to an apparatus requiring controlled fluid flow or pressure. The housing has a ring-shaped passgeway or orifice provided therein between the input and output ports and is in communicaton therewith. A valve spool is movably mounted in the housing and has an O-ring mounted thereon which is adapted to selectively close the passageway at times when the valve spool is moved in one direction with respect to the housing. One end of a stem is secured to the valve spool and extends therefrom through a seal means provided in the housing. The housing has an adjustable spring loaded diaphragm assembly positioned therein which is operatively connected to the other end of the stem. A spring means normally urges the valve spool in said one direction with the diaphragm spring means normally urging the valve spool in an opposite direction.
REFERENCES:
patent: 2115383 (1938-04-01), Christensen
patent: 2738803 (1956-03-01), Manning
patent: 3140728 (1964-07-01), Webb
patent: 3348576 (1967-10-01), Ackerman
patent: 3621867 (1971-11-01), Johnson
patent: 3682437 (1972-08-01), Miller
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